Lock



' Dec. 2Z,1925- Y F.'A. TURNBULL LOCK Filed Dec. 11. 1924 1.51].

IN VENTOR lfLYilmball ATTO RNE Y Patented Dec. 22, 1925.

units srarss 1,566,937 FPAT'ENT QFFICE.

FREDERICK A. TURNBULL, OF BROOKLYN, NEW YQBK, ASSIGIIOR TO EDWARD IBIERSAGK, OF NEW YORK, N. Y.

LOCK.

Application filed December 11, 1924. Serial No. 755,123.

To all 'whom' it may concern.

Be it known that l, FREDERICK A. TURN- nunn, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Locks, of which the following is a specification.

The main object of this invention is to provide a lock naving a novel characteristic of a sliding bolt mounted within a rigid bolt, the slidingbolt being adapted to cooperate with the keeper to lock the rigid bolt in a position where it may not be jimmied or otherwise released.

Another object is to provide a lock hav- ;ing amain body and a keeper in which a movable member is situated, the movable member in the keeper cooperating with a rigid hooked member in the body of the lock, to securely and releasably lock both the body and keeper together so that they may not be pried apart.

Another object is to provide a lock haw ing a sealing bolt mounted rigidly on the body and hooked at its outer end, the hooked portion of the sealing bolt, cooperating with the keeper of the lock by engaging the movable member in the keeper, said movable member in the keeper being adapted to be shifted out of engagement with the hooked portion of the sealing bolt by a movable member situated in the body of the lock.

Still another object is to provide a lock having a spring operated lock disengaging bolt, a jimmy-proof sealing bolt and a dead lock spring, these three features not being found combined in the usual type of lock.

The above and other objects will become apparent in the description below, in which characters of reference refer to like-named parts in the drawing.

Referring briefly to the drawing, Figure 1 is a front elevational view of the lock shown cooperating with the keeper.

Figure 2 is an end elevational view of the same. Y

Figure with the keeper in bolt;

Figure 1 is a cross-sectional view taken on line of Figure 3.

. Figure 5 a sectional side elevational 2) is a top plan view ofthe lock casing removed and showing the engaged position with the sealing view of the lock, showing the keeper in the act of being disengaged from the scaling bolt.

Figure (5 is a perspective view of the scaling bolt disengaging means.

Figure 7 is a perspective view of one end. of the rigid sealing bolt.

Referring in detail to the drawing, the numeral 10 indicates the base of the lock body which is secured to the surface of a door or other member by screws 11. Said baseplate has a rigid longitudinal sealing .bolt 12 secured to its upper face. The forward end of the sealing bolt projects beyond the edge of the base plate 10 and is provided with a hook extension 13, said hook having the outline of an ordinary tapering lug which projects sidewise from the sealing bolt. A projection consisting of a flange 1a which extends parallel to the surface of the bolt 10 is formed on the face of said sealing bolt 12 on the side opposite to the hook 13. The flange 14 is separated from the surface of the sealing bolt '12 by a rectangular recess 15 which faces and is open towards the rear end ofthe sealing bolt. The material 16 which forms the bridge or junction between the flange 14 and the body 12 of the sealing bolt, is provided with an openingli which passes through the bridge and permits communication between the recess 15 and a somewhat similar recess 18, the last-named recess having a flat wall 19 and a curved wall 20, the curved wall being adapted to intersect the flat wall 19. The outline of the recess bounded by the flat wall 19 and the curved wall 20, corresponds roughly to a quarter of a circleand is adapted to receive a locking dog 21 which is slidable on a pair of studs 22 and 28, the studs being rigidly mounted in the walls of a hollow keeper housing The locking dog 21 is of the same length as the width of the sealing bolt 12 and across has the same outline as the recess formed by the surfaces 19 and 20. Said dog 21. is slidably mounted on the studs'22 and 23 and is normally urged toward the wall 25 of the keeper housing by springs 26 which are mounted on the studs 22 and 23 by being wound thereon. The sealing bolt 12 sup ports a movable plate 27 which is adapted to engage the locking dog 21 of the keeper when the latter has been urged into the recess formed within the outline of the surfaces 19 and 20 and comprises the rectangular piecev of material of the same width as the sealing bolt 12 and is provided with a longitudinal slot 28 ,open at 29 to the side of the plate and at its opposite end, the slot is provided and communicates with .a square opening 30. At the forward end of the plate 27, a square block 31 is formed which is slidable in the channel 17 of the sealing bolt and traverses over and fills the recess formed within the surfaces 19 and 20 when the plate 27 is fully extended. The rear portion of the plate 27 has an additional flange 32 which extends at right angles to the surface of the plate 27 and is providedwith openings 33 near its opposite ends in which the ends of the guide bolts 34 and 35 are rigidly secured. These guide bolts 34 and 35 extend forwardly parallel to the longitudinal edge of the plate 27 and have their opposite ends slidably journalled in the cars 36 which extend outwardly from the side faces of the sealing bolt 12. These lugs are adapted to support and form guides for the bolts to insure a transverse movement of the plate 27 when the latter is urged forwardly. The plate 27 is normally in the retracted position shown in Figure 3 and is retained in such position by springs 37 which are mounted on guide bolts 34 and 35. At one corner of the flange 14 of the sealing bolt 12, a sleeve 38 extends outwardly into the recessed portion 15, and below this sleeve 38, a. square opening 39 is formed in the body 12 of the sealing bolt. The sleeve is provided with a hole in which the shank 40 of the plunger is slidably mounted, and the lower-end of this shank is provided with a head 41, square in outline, which is adapted to slide within the opening 39 formed in the sealing bolt, and when lifted, being adapted to register in the opening 30 formed in the plate 27. The spindle 42 is rotatably mounted in an opening formed in the sealing'bolt 12 and said spindle is provided with a diametral slot 43. This spindle is connected to the turnable member situated in the usual type of tumbler barrel 44, and said spindle is adapted to. berotated when a proper key is inserted in this tumbler barrel. Lying on the surface of the sealing bolt 12 and secured to the spindle 42 is a rocker arm 45 whose ends are adapted to engage the flange 32 and urge the plate 27 forward against the tension of the spring 37. v

The entire mechanism is enclosed in a casing 46 which is secured to the lugs 47 situated on both sides of the sealing bolt 12 by suitable screws, not shown on the drawmg. I

An actuator knob 48 is rotatably mounted in the top of the casing 46 and has a blade 49 rigid therewith which registers in the slot 43 formed in the spindle 42. This blade 49 is'adapted to retate said spindle from the inside of the door without the aid of a key. A head 50 is provided on the shank 40 of the plunger, and above'the surface of the lock casing 46 and between the head 50 and the surface of the lock casing, a spring 51 is wound on the shank and normally urges the head of the plunger 41 up- ,wardly so that it is engaged in the square opening 30 formed in the plate 27.

In operating this look, the rigid sealing bolt enters into a square recess 52 formed in the front wall 53 of the keeper. The hook projection 13 of the sealing bolt projects over the side of the base plate 10, and the space between the hook and the base plate 10 accommodates the retaining wall 54 of the keeper. to be inserted between the retainer wall of the keeper, and the base plate 10 of the lock, the two members, that is, the keeper and the body proper of the lock, would not be pried apart, owing to this hook projection 13. As the door upon which the base plate 10 is swung to the closed position, the curved surface 55 on the hook of the sealing bolt engages the curved surface of the locking dog 21 mounted in the keeper and urges the latter rearwardly upon the studs 23 to the position indicated in Figure 5. After the door has been swung completely closed, the locking dog moves into the recess bounded by the surfaces 19 and 20 between the flange 14 and the main body of the sealing bolt 12 and locks the door in closed position. In order to unlock the door, it is necessary to again shift the position of the locking dog 21 in the keeper from the position shown in Figure 3 to that shown in Figure 5. This is accomplished by the square head 31 mounted on the plate 27. In moving the dog to the position shown in Figure 5, the knob 48 is turned from the inside, or the key is inserted into the tumbler barrel 44 from the outside. The key or the knob 48 in being rotated, thus rotates the spindle 42 and causing the rocker arm 45, rigid with said spindle, to rotate, thus moving the flange 32 forwardly. As the square head 31 of the sliding bolt is rigid with the flange 32 through the medium .of the plate 27, said square head 31 is moved forwardly and urges the locking dog 21 out of the recess formed by the surfaces 19 and 20 against the thrust of the springs 21, thus releasing the sealing bolt from engagement with the keeper. In order to lock the head 31 of the sliding bolt in advanced position, the plunger head 41 is provided. This plunger head 41 is lifted automatically by the spring 51 into the square opening 30 as the latter passes over and registers with the opening 39 formed in the sealing bolt 12, thus locking the bolt 12 in advanced position, in which position the locking dog of the keeper is moved into the position shown in Figure 5. To lock the door when'the locking dog 21 Were a jimmy or pry bar is in the position shown in Figure 5, the head 50 mounted-on the shank so is depressed against the thrust of thespring 51s0 that the square head 4-1 on said shank is lowered into the opening 39 of thesealing bolt and the plate 27 moves rearwardly. under the action of the springs 37, thus moving the square head 81 out of the channell? into which the dog Ql the'n enters.

1. In a.lock, a main body, a sealing bolt rigid thereon, a keeper and movable means leratingwith the sealing bolt for preventing transversemovement of thesealing bolt away fromthe keeper when the latter and the. sealing bolt are in locked interengagement. v r v :2. In a lock, a main body, a sealing bolt rigid thereon, a keeper. andvmovablel means in? said keeper adapted to cooperate with the sealing. bolt for locking the sealing bolt within the keeper, and means on the sealing bolt adapted to engage the keeper to-couple the keeper and sealing belt securely against s reading apart mutually.

3. In a look, a mainbody, a sealing bolt rigid on said body, a keeper having a recess for the entry of the sealing belt, a retaining wall on said l-Vteeper, hook extendingsidewise from said sealing bolt, said hook being adapteijlvto engage the retaining wall and prevent spreading of the main body of the look away from and apart of the keeper, movable .means on said sealing bolt, movable means in the keeper engaging the seal ing bolt, said movable means on the sealing bolt being adapted to disengage the movable means in the keeper from engagement with the sealing bolt.

4?. In a lock, a main body, a sealing bolt rigid on said body, a keeper, a retaining wall on said keeper. means on said sealing bolt engagingsaid keeper to prevent spreading ot the keeper away from the body of the lock, said sealing bolt having a recess therein, movable means in the keeper adapted to enter into said recess of the sealing bolt, means "for urging said movable means in the keeper into the recess of the sealing bolt, and means for disengaging the movable means in the keeper from the engagement with the sealing bolt.

5. In a lock, a main body, a sealing bolt rigid on said body, a keeper, a retaining wall on said keeper, means on said sealing bolt engaging said keeper to prevent spreading of the keeper away from the body of the lock, said sealing bolt having a recess therein, movable means in he keeper adapted to enter into said recess of the sealing bolt, means for urging said movable means in the keep'er into the recess of the sealing bolt comprising studs mounted in said keeper,said movable means being slid-able on said studs, and springs mounted on said studs adapted to urge the movable means in the keeper into engagement with the sealing bolt.

6. In a look, a main body, a sealing bolt rigid thereon, a hook on said sealing bolt, a keeper having a retaining wall, the hook of the sealing boltengaging the retaining wall of the keeper, said sealing bolt having a recess therein and a channelcommunicating with said recess, a movable dog in said keeper adapted to engage in the recess of the sealing bolt and lock the seal ing bolt in the keeper, and movable means on the sealing bolt and slidable in the recess thereof for engaging the (log in the keeper to disengage said dog from the sealing bolt. and means on said lock for securing the movable means of the sealing bolt in extended position.

7. "In a look, a main body, a rigid sealing on said body, a hook on said sealing bolt, akceper having a retaining wall, the hook of the sealing bolt engaging the retaining wall of the keeper, said sealing bolt havinga recess therein and a channel communieating with said recess adapted to receive locking means for securing the sealing bolt in the keeper, movable means on the sealing bolt comprising a slide bolt having a block at its forward end slidable in the channel communicating with the recess, a plate integral with said block, a square opening formed on said plate, and means engaging said plate for locking the block of the sliding bolt in the recess.

8. In a look, a main body, a rigid ing bolt on said body, a hook on said Sealseal -ing bolt, a keeper having a retaining wall,

the book of the sealing bolt engaging the retaining wall of the keeper, said sealing bolt having a recess therein and a channel communicating with said recess adapted to receive locking means for scouring the sealing bolt in the keeper, movable means on the sealing bolt comprising a slide bolt having a block at its forward end slidable in the channel connuunicating with the recess, a plate integral with said block, a square opening formed on said plate, means engaging said plate for locking the block of the slitling bolt in the recess, a plunger slidably mounted on said lock, said plunger being adapted to register in the square opening in the plate of the slide bolt to retain said slide bolt in advanced position. and means for lifting said shank into the locking position.

9. In a look, a main body, a rigid sealing bolt on said bo'ly. a hook on said sealing bolt, a keeper having a retaining wall, the book of, the sealing bolt engaging the retaining wall of the keeper, said sealing bolt having a recess therein and a channel communicating with said recess adapted to receive locking means for securing the sealing bolt in the keeper, movable means on the sealing bolt comprising a slide bolt having a'block at its forward end slidable in the channel communicating with the recess, a plate integral with said block, a square opening formed on said plate, means engaging said plate for locking the block of the sliding bolt in the recess, a plunger slidably mounted on said lock, said plunger being adapted to register in the square opening in the plate of the slide bolt to retain said slide boltin advanced position, means for lifting said shank into the locking position. a head on said shank exterior of the lockbody, a spring between the lock body and the head, and adapted to lift said lunger into a position in which the slidmg bolt on the sealing bolt is locked in advanced position, and means for retracting said sliding bolt on the sealing bolt when the shank is depressed.

10. In a lock, a main body, a rigid sealing bolt thereon, a keeper, a movable dog in said keeper, said sealing bolt having a recess bounded by a flat surface and a curved surface, the curved surface of the recess facing the front of the keeper, the movable dog in the keeper being adapted to register in the recess of the sealing bolt, a sliding bolt mounted on said sealing bolt and adapted to enter into the recess thereof, means for locking the sliding bolt in position in the recess comprising a plunger having a shank, a square head at the lower end of said shank, said square head being'retained in an opening in the sealing bolt, a spring adapted to lift said head, said sliding bolt having square recess adapted to receive the square head of the shank and retain the sliding bolt in advanced position, and means for retracting said sliding bolt when the shankis depressed.

11. In a lock, a main body, a rigid sealing bolt thereon, a keeper, a movable dog in said keeper, said sealing bolt having a recess bounded by a flat surface and a curved surface, the curved surface of the recess facing th front of the keeper, the movable dog in the keeper being adapted to register in the recess of the sealing bolt, a sliding bolt mounted on said sealing bolt and adapted to enter into the recess thereof, means for locking the sliding bolt in position in the recess comprising aplunger having a shank, a square head at the lower end of said shank, said square head being retained in an opening in the sealing bolt, a spring adapted to lift said head, said sliding bolt having a square recess adapted to receive the square head of the shank and retain the sliding'bolt in advanced position, a flange on said sliding bolt, studs secured to said flange, ears on said sealing bolt having openings therein, the opposite ends of said studs being slidable in the openings of said ears, and means on said studs betweentheears and the flange of the sliding bolt for retracting said sliding bolt when the plunger shank has been depressed. 1

12. In a look, a main body, a rigid sealing bolt thereon, a keeper, a movable dog in said keeper said sealing bolt having a recess bounded by a flat surface and a curved surface, the curved surface of the recess facing the front of the keeper, the movable dog in the keeper being adapted to register in the recess of the sealing bolt, a sliding bolt mounted on said sealing bolt and adapted to enter into the recess thereof, means for looking the sliding bolt in position in the recess comprising a vplunger having a shank, a square head at the lower end of said shank, said square head being retained in an opening in the sealing bolt, a spring adapted to lift said head, said sliding bolt having a square recess adapted to receive the square head of the shankand retain the sliding bolt. in advanced position, a'flange on said sliding bolt,

studs secured to said flange, ears on said sealin' bolt having openings therein, the opposite ends of said studs being slidab-le in the openings of said ears, springs wound on said studs between the flange of the sliding bolt and the ears and adapted to retract said sliding bolt out of the recess in the sealing bolt, means for extending said sliding bolt comprising a rocker arm, and means for retaining said rocker arm.

13. In a look, a main body, a rigid sealing bolt thereon, a keeper, a movable dog in said keeper, said sealing bolt having a recess bounded by a flat surface and a curved surface, the curved surface of the recess facing the front of the keeper, the movable dog in the keeper being adapted to register in the recess of the sealing bolt, a sliding bolt mounted on said sealing bolt and adapted to enter into the recess thereof, means for locking the sliding bolt in position inthe recess comprising a plunger having a shank, a square head at the lower end of said shank, said square head being retained in an opening in the sealing bolt, a spring adapted to lift said head, said sliding bolt having a square recess adapted to receive the square head of the shank and retain the sliding bolt in advanced position, a flange on said sliding bolt, studs secured to said flange, ears on said sealing bolt having openings therein, the opposite ends of'said studs being slidable in the openings of said ears, springs wound on said studs between the flange of the sliding bolt and the ears and adapted to retract said sliding bolt out of the recess in the sealing bolt, means for extending said sliding bolt comprising a rocker arm, a spindle rotatable in said sealing bolt, said rocker arm bein secured to said spindle, the rocker arm when rotated being adapted to engage the flange of the sliding bolt and move the latter forwardly, sald splndle having a diametral slot therein, a casing covering the sealing bolt, sliding bolt, and spindle,

an actuator head rotatably mounted on said casing, a blade rigid with said rotatable head, said blade registering in the diametra] slot of the spindle, said blade being adapted to rotate the spindle and rocker arm and advance the sliding bolt when the actuator 10 headis rotated.

In testimony whereof I afiix my signature.

FREDERICK A. TURN BULL. 

